Improvement in clamps for hose-couplings



' UNTTED STATE-s PATENT OFFIcn.

oscAR T. ERLE, oF NORWALK, CONNECTICUT.

IMPRovl-:M'ENT |N en /AMPSl FOR Hose-'couPumas.

Specification forming part of Letters Patent No. 172,982, dated February 1, 1876; applicationriiled september 11, 1875. v

To all whom it may concer/n.:

Be it known that I, OSCAR T. EARLE, of Norwalk, in the' county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Clamps for Hose- Couplings; and I do herebydeclare that the following is a full, clear, and exact description thereof, which will enable others skilled inthe art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this* common use; and also consists in forming a tongue or projection at one end of said strip, which will be inserted in corresponding apertures formed in the other or opposite end of the same, by which the two ends are inter locked or interlaced with each other, so as to obtain great lateral strength and rigidity, and power of resistance, and, by means of suitable clamps formed of jaws and springs, they may be united and held rmly in position, which will be hereinafter .more fully described.

It is well known that many attempts have been made in this direction, the devices being principally constructed of cast metal, and some have been forged out of wrought-iron, but, as far as I am aware, none have been successful. The eiforts heretofore made have failed principally for lack of flexibility and capacity in the devices t0 `fit the varying thickness of the hose of the different makers.

It may be said, and proved by actual experience, that these clamps will hold or fastenl rmly together, on the same thimble or couplingfhose varying in thickness from one .to four ply, using the one-size clamp.

Aperson of ordinary capacity.

Referring to the drawings, Figure 1 represents a perspective view of a single band or strip provided with one aperture and a corresponding tongue, and having projecting lugs or bosses for receiving the gripe of the pinchers, tongs, or vise, to force the strip to a proper s,

enings, as may be desired. Fig. 4-is a longitud inal section of Fig. 3. Fig. 5 represents a crosssection of the fastening before being clinched into position; also, a cross-section of hose and hose-couplin g, with tne jaws or clamps I prefer to use for securing the fastenings, the spring serving to open orwithdraw the clamp when the joint is iinished'. pinchers before.- alluded to may be used instead. Fig. 6 represents an edge view of Figs?) and 4, with a cross-section of hose and hosecoupling with the fastenings clinched down complete for use. Fig. 7 shows a plan 0f hose pipes, couplings, and-fastenings, all completely coupled ready for use, one end of said hose vrepresenting a small section, while the other represents a larger one; and it will be 'seen that at the middle of the hose the thimble used to join them together with is the 'the sizes of hose.

It will be observed that this method is simple and cheap, and easily manipulated by any It willalso be observed in steam/and air brakes, hre-hose, Snc., that great danger is caused by the breakage, burstingyor fracturing of the hose or connections, and exceedingly great losses of both propertyand life often result from being'unable to repair them in ashort space of time.`

Either the tongs or- Thus will be seen the importance of this invention, and in what way the dangers and losses above enumerated can be avoided'.

The looking or' interlaoing device may be made in many different forms and modificalions; but I do not conne myself to any particular form that may be stamped ont of sheet metal in one piece, but claim a sheet-metal hose clamp or fastening,` stamped or punched by any well-known method or design, by which. :t sheet-metal `strip 0r fastening is formed for hose-coupling.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

A strip or band forming a clamp o1' fasteninfor hosestampedor punohedfontof sheet metal in oney piece, bat-vingf perforations and OSCAR fr; EARLE.

Witnesses:

F. P. MULLOYJ, C. H. MoULToN.

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